Add `solve_context_type`

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 86.92%. Comparing base (6b230ed) to head (700b56b).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1717 +/- ## ========================================== - Coverage 87.35% 86.92% -0.44% ========================================== Files 117 117 Lines 29824 29804 -20 ========================================== - Hits 26053 25907 -146 - Misses 3771 3897 +126 ```

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[thofma]

Thanks, looks good (modulo the minor comment).